Once Saved Always Saved: Why the Debate On External Security

The sufficiency of grace as it relates to eternal security is a profound and central theme in Christian theology. Grace, defined as the unmerited favor of God, is pivotal for understanding the concept of eternal security—the belief that once a person is truly saved, they remain saved forever. This doctrine is deeply rooted in the New Testament and is supported by numerous scriptural passages that highlight the unchanging and steadfast nature of God's grace.
To begin with, the doctrine of eternal security is often encapsulated in the phrase "once saved, always saved." This doctrine asserts that salvation, once granted, is irrevocable because it is grounded in the grace of God rather than human effort. Ephesians 2:8-9 states, "For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast." This passage clearly emphasizes that salvation is a gift from God, not something that can be earned by human effort. Since it is a gift given by God’s grace, it cannot be taken away by human actions.